Mechanical cow milker



A. A. HOSENFIELD.

MECHANICAL COW MILKER.

APPLICATION FILED SEPT-29,1919- RENEWED MAR. 4.1922.

WITNESSES lllllilllllil v I-IIIIIII Ii Illllllliil Patented Apr. 11,1922.

4 SHtEl'S-SHEET Z- l/Vl/E/VTUR A 4040/? .J. Haas/112th BY I A TTUR/VEVSA. A. ROSE NFIE'LD. MECHANICAL cow MILKER. APPLICATION FILED SEPT. 29,l91 9- RENEWED MAR. 4,1922.

1 Patented Apr. 11, 1922 4 SHEETS-SHEET 3.

p INVENTOR M050 A 490 amin /d,

WITNESSES A. A. ROSENFIEED.

v MECHANICAL cow MILKER. APPLICATION FILED SEPT-29.1919- RENEWED MAR. 4,i922- 1,41 2,092. Patented'Api'. 11, 1922.

v Q v 4 SHEETS SHEEY WITNESSES ATTORNEYS uurrso STATES PATENT; OFFICE.

ADOLPH ABB BOSENFIELD, OF DAYTON, NEW JERSEY.

MECHANICAL COW MILKER To all whom it may concern:

Be it known that I,- Anonrn Ann ROSEN- FIELD, formerly a subject of theRussian Government, and having declared my intention of becoming acitizen of the United States, and a resident of Dayton, in the county ofMiddlesex and State of. New Jerthe resulting advantages of theparticular construction I propose, will be apparent from the followingdescription, reference being made to the accompanying drawings, forminga part of this specification, and in which,

Fig. 1 is a side view illustrating the practical application of myinvention,

Fig. 2 is an enlarged side view of my improved milker,

Fig. 3 is a bottom plan view thereof,

Fig. 4 is a top plan view,

Fig. 5- is a rear elevation, f Fig. 6 is a side view illustrating amodified orm,

Fig. 7 is a detail perspective view of the movable carriage or slide,removed,

Fig. 8 is a detail'top plan view of a pair of presser plates as seen inFig. 6, illustrating another slight modification,

Fig. 9, isa side view illustrating another modified form embodyingreadily-adjustable spring presser plates in connection with cups likethose of Figs. 1 to 5 inclusive,

Fig. 10 is a detail horizontal section taken through one of the uprightholders of Fig. 9 in a plane through the center of one of the adjustingscrews.

Fig. 11 is a side view showing the readily adjustable spring plates usedin opposed relation without the cu$ Referring now to ese figures, andparticularly to Figures 1 to 5 inclusive, my mvention proposes amechanical cow milker which as best seen in Figures 1. 3 and 4, consistsof a main frame including spaced parallel bars 10 and 11, which arerigidly connected in their spaced apart relation by stub shafts joiningbearing blocks'12 secured to the lower surface of the bars 10 and 11,

the said shafts supporting rollers 12 below.

the plane of the bars 10 and 11 and extendmg across the spacetherebetween. The spaced apart relation of the bars. 10 and 11 thusprovldesa lengthwise slot in the frame between the bars, for thereception of the lower longitudinal frame strips 13 of the carrlageorslide to be hereinafter described, the main frame having an upturnedforward end 14, as best seen in Fig. 2, to which a forwardly extendinghandle 15 is connected.

The 'main frame is also provided with forward, intermediate and rearuprights, 16, 17 and 18, as best seen in Fig. 4, these uprightsprojecting vertically from the two spaced bars '10 and 11 and havingvertically slotted openings by means of which the intermediate portionsof cross bars 19, 20 and,

forwardly projecting lugs 27 of a' pair of teat cups 28 at each side ofthe mainframe, the lower portions of which teat cups 28 are'Specification of Letters Patent. Patented Apr. 11, 1922- Applicationfiled September 29, 1919, Serial No. 327,131. Renewed March 4, 1922.Serial No. 541,193.

entirely closed, and the upper portions of which open rearwardly and arecut away at theirsides as at 29, for a purpose to be presentlydescribed.

The forward upright holder 24, and the rearupright 30 of the rear crossbar 21, are provided at their upper'ends withapertured angularextremities 31. so that the device as a whole may be attached to ananimal in use by means of a body-encircling band 32,

as seen in Fig. 1, the lower ends of which have spaced hooks to enterthe openin of the extensions 31. thus supporting the mllker with thehandle 15 of the main frame projecting to one side of the animal inconnection with which it is supported.

The frame bars 10' and 11 are preferably slotted lengthwise, as at 33 inFigs. 3 and 4, providing for the adjustable connection of theintermediate upright 17, by means of clamping bolts 34, so that with theadjustment of the cross bars 19 and 20, and the upright holders 24 and25, it is obvious I that the teat cups 28 may be readily and engagedquickly adjusted whenever this operation becomes necessary.

The carriage or slide before mentloned, and shown-in detail in Fi 7, isalsoprovided with uprights 35 an 36, respectlvely located rearwardly ofthe forward and intermediate uprights 16 and 17 of the main frame,-therear upright 36 being ad ustably secured to the slide bar '13 by virtueof the slotted'rear end 37 of said slide bar and clamping bolts 38. Bothof these uprlghts 35 and 36 have vertically slotted openings 39, bymeans .of which cross bars 40 and 41 are adjustably connected throughthe use of clamping bolts 42, and the outer ends of each of thesecrossbars 40 and 41 are by brackets43 in connection with upright holders44, which are thus ad ustable laterally toward and away from one anotherand arranged in pairs at opposite sides of the slide bar 13 to coincidewith the arrangement offthe teat cups 28 on the main frame. To the upperend of the upr ght holdersv 44, the rear surface of an upright presserplate 45 is hinged as at 46, the rear surface of the presser plate'being engaged adjacent its upper end by a spring 47, the

' lower end of which is anchored in connection with its adjustableclamping bracket 43.

. The several presser plates 45 are held, normally in upwardly andforwardly incllned relation, and in position'to enter the upperrearwardly opening portions of the several teat cups 28, the cross bars40 'and 41 extend ing into the recessed side portions of the cups 28when the slide or carriage is s ifted forwardly to project the inclinedpresser plate into the teat cup, this movement being simultaneous ofcourse, in connection 'w1th the series of teat cups and presser plates.

For the purpose of shiftingthe carriage or slide, the lower portion ofthe slide bar 13 is provided at intermediate points 'with a bearing 48in which is pivotall supported the rear end of aconnecting ro 49, thelatter having. a series of apertures 49 at "its forward end, as bestseen in Fig. 7, connected to the lowerportion of a depending crank 50,whose upper portion is pivotally connected to the sides of the mainframe at the lower end of its forward angular portion 14 before referredto. Connected at its rear end to the depending crank 50, is a secondconnecting rod 51, the forward end of which is pivotally and adjustablyconnected at. 52 to a lever 53 intermediate the ends of the latter. Oneend'of the lever 53 is pivotally connected at 54 to the handle 15 of themain frame, and thus when the lever 53 is ressed toward the handle 15 ofthe main rame, the two links 49 and 51 and the crank 50, and thus" theslide bar 13 will be shifted forwardly so that the several presserplates 45 will be projected into the several teat cups 28, the incliadjustably.

practice the mechanical device provided by I my invention will beutilized over a bucket which will receive the milk from the lower openend of the lower closed portions of the several teat cups 28 and that inadj ustifig the device in connection with a cow, and securing it inposition by means of the body-encircling band 32, previously described,the parts will be adjusted through the several connections previouslydescribed so 7 as to conveniently receive the'teats within the severalteat cups 28.

It is possible, however, that the teat cups 28 may be dispensed with andan apparatus employed 'as' in Fig. 6 where the teat cups are removed andupright holders 55 inserted in connection with the main frame uprightsby adjustably. connecting the same with brackets 56, upon the forwardand interme-- 57 mounted inconnection with said holders in a mannersimilar to the mounting ofthe Y presser plates 45 of the slide orcarriage, as previously described, so that the main frame will havespring-controlled presser plates 57, the springs of which are indicatedat 58 in Fig. 6, to oppose the presser plates 45 of the carriage orslide.

In the form of the invention shown in Fig.

6, wires or similar holding means, as ind1-,

cated at 59, will be extended between the upper end of the forward "andrear holders 55 and 60 respectively, to which are attached the upperends of flexible teat holding sacks 61, open at the upper and lower endsthereof.

and disposed between thelseveral opposing presser plates 45 and 57. Thelower endsof sacks 61 will of course beopen for the outflow of the milk,and the carriage or slide in this form of the invention is actuatedthrough the samemeans employed in connection with the previouslydescribed form of constructionishown in Figures 1 to 5 inclusive.

It i obvious, therefore, that my invention provldes a readily adjustabledevice for doing by purely mechanical arrangement and in a speedy,effective manner, what is now either done by hand, at the expense ofmuch time and labor, or by vacuum systems and the like, involving:expensive installation.

It is also to be observed that my inven tion-provides a device whichwhilemanually actuated, simultaneously acts upon all 'four" I teats andneeds no manual support while in operation owing to the convenientlyattachable supporting means, as shown and described.

I ma also adopt-some means to avoid .allten ency'of the upperportions-"of the two presser plates 45 and 57 from movement away fromone another after pressure .--68 to locking'iarms 69,-having an has beenapplied to bring them to sub stantially vertical parallel position, inView of the fact that such tendency may squeeze the'milk upwardlyinstead of downwardly.

I ma'yfor this purpose adopt an expedient such as shown in Fig. 8whereinone of the two plates, for instance, the plate 45, may haveopenings adjacent to'each side there- ,1-5

of, and its upper edge, for the reception of pins 65 whose inner endsoppose the presser plate .57 and whose outer ends are pivotallyconnected at 66 to one endof a pair of bell crank levers- 67,- theopposite ends ofwhich are adjustably connected at lar extensions 70 formovement-rearwar 1y of the plates57 after the latter have engaged and 7shifted the pin 65" in outward direction.

This .movement. will take place against the tension ofsprings 71 sothat-theinstant pres- "sure is relieved from the plates, the lockingarms 69 will be retracted so that the plates 45* and 57 will beffree torecede to their spaced relation as seen in Figure 6. This constructionlast described simply obviates the above stated difilculty in view ofthe fact that the springs-4-7 cannot be made very strong on account ofthe danger of cutting by the upper inner edges of the 'presser plates.

I :may also adopt a readilyv adjustable spring device in connection witheither single 'pres'ser plates working in connection withcups asiin Fig.9, or double presser -pla tes working in opposed relation, as in Fig.11, especially in connection with hard milkers. The presser plates 75 ofFig. .9 'are eachhingedly mounted at 76 at their lower i edges and havetheir'upper ed es pivotally connected at 77 to guide rods 8.

' These guide rods workoutwardly through bearing members 79 carried byupstanding portions ,of the uprights 44 and these bearing members 79 arethreaded in the said upstanding portions of the uprights and their innerends receive thereagainst one end of springs 80 coiled around the rods78 between the presser plates 75 and the bearing members. .In this way,by simply screwing inwardly or outwardly upon the bearing members, 79the tension exerted by the springs 80 to resist yielding of the presser.plates on their hinges 76 in operation may be effectively controlledand by this adjustment and the particular relative disposition of theparts, the construction of Figs. 9 and 11 is more especially adapted forwhat are known as hard or difiicult milkers.

The detail of the connection of one of the bearing members 79 appearsclearly in Fig. 10 and Fig.11-differs from Fig. 9 only.

main frame having a handle, a plurality ofpresser plates movabfy mountedtherein, a-

carriage slidable in the said main. frame, a lever having connectionwith the main frame and with the said carriage for actuating the latter,a plurality of presser plates movably connected to'the said carriage andopposing the presser plates of the mam frame, means '85 normally holdingthe opposed presser plates in angular position with their upper ends incontiguous relation, and automatically re- 1 leasable means carried bythe upper portion of one of the presser plates of each pair,'to securethe 'same] against movement away from one..anoth er while the plates aremov-.

ing toward one another. y Y

2. .A mechanical cow milker comprising a main framehaving a handle, aplurality of' presser plates movablymounted therein, a

carriage slidablein the said main frame, a

lever having connection with the main frame and with the said carriagefor actuating the latter, a plurality of presser plates movablyconnected-to the said carriage and opposing the presser plates of themain frame, means normally holding the opposed presser plates in angularposition with their upper ends in contiguous relation, and springcontrolled hooks'carried by the upper portion of one of the plates ofeach pair, to engage the upper portion of the other plate and preventmovement of the said upper options of the plates away from one anot erduring the movement of the lower portions'of the plates toward oneanother. a

3. A mechanical milking device including a frame, a carriage movabletherein, a lever for moving the carriage, and cooperating teat engagingmeans carried by the frame and carriage including vertically slotteduprights on the carriage one of which is adjustable in the length of thecarriage with v respect to the other. cross arms having connecting meansvertically adjustable in the slots of the uprights, upright holdersslidable horizontally on the cross arms, teat engaging presser plateshingedly connected at their lower ends to the holders, and springsbetween the upper end of the holders and saidpresser plates, andadjusting members worklng in the holders for controlling the efi'ectivepressure of said s rin ADOLPH ABB Rbs NFlELD.

